Waste Water Engineering The self-cleansing velocity of water flowing through pipe lines, is 2 metres/sec 0.5 metre/sec 1 metre/sec 0.25 metre/sec 2 metres/sec 0.5 metre/sec 1 metre/sec 0.25 metre/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering As compared to fresh river water, sea water contains oxygen 10% more 20% less 10% less 20% more 10% more 20% less 10% less 20% more ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The liquid wastes from kitchens, bath rooms and wash basins, is not called Sewage None of these Liquid waste Sullage Sewage None of these Liquid waste Sullage ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage is generally Alkaline Acidic A source of objectionable odour Highly decomposed Alkaline Acidic A source of objectionable odour Highly decomposed ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known Bio-Chemical Oxygen Demand (B.O.D.) None of these Chemical Oxygen Demand (C.O.D.) Dissolved Oxygen (D.O.) Bio-Chemical Oxygen Demand (B.O.D.) None of these Chemical Oxygen Demand (C.O.D.) Dissolved Oxygen (D.O.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding Sulphuric acid and napthamine Potassium permanganate None of these Phenol-di -sulphuric acid and potassium hydroxide Sulphuric acid and napthamine Potassium permanganate None of these Phenol-di -sulphuric acid and potassium hydroxide ANSWER DOWNLOAD EXAMIANS APP
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